package com.itheima.curator;

import org.apache.curator.RetryPolicy;
import org.apache.curator.framework.CuratorFramework;
import org.apache.curator.framework.CuratorFrameworkFactory;
import org.apache.curator.framework.recipes.locks.InterProcessMutex;
import org.apache.curator.retry.ExponentialBackoffRetry;

import java.util.concurrent.TimeUnit;

public class Ticket12306 implements Runnable{
    private int ticket =10;
    private InterProcessMutex lock;

    public Ticket12306 (){
        RetryPolicy retryPolicy = new ExponentialBackoffRetry(3000, 10);
       CuratorFramework client = CuratorFrameworkFactory.builder().connectString("192.168.23.129:2181")
                .sessionTimeoutMs(60 * 1000).connectionTimeoutMs(15 * 1000)
                .retryPolicy(retryPolicy).build();
        client.start();

        lock=new InterProcessMutex(client,"/lock");
    }

    @Override
    public void run() {
        while (true){
            //获取锁
            try {
                lock.acquire(3, TimeUnit.SECONDS);
                if (ticket>0){
                    System.out.println(Thread.currentThread()+":"+ticket);
                    ticket--;
                }
            } catch (Exception e) {
                e.printStackTrace();
            }finally {
                try {
                    lock.release();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }

        }

    }
}
